Managing Cotton Nitrogen Supply

Gerik, T. J.; Oosterhuis, Derrick M.; Torbert, H. Allen

doi:10.1016/s0065-2113(08)60503-9

Cited by 95 publications

(86 citation statements)

References 55 publications

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“…Plant height extension that includes all growing internodes, expansion of all leaves and effective PAR capture and interception (Alm et al, 1991;Morrison et al, 1994;Reddy et al, 1997b) will affect overall canopy development (Reddy et al, 1997a(Reddy et al, , 2004Gerik et al, 1998). During the 28 days of treatment, there were significant differences in stem lengths due to N, P and K treatments (Table 1-3).…”

Section: Resultsmentioning

confidence: 99%

“…Although N, P and K frequently limits growth and development of several crop species under field conditions, the precise mechanisms by the limitation occurs are complex and variable depending on species, developmental stage and environment. Limited N, P and K supply decreases rates of cell division, cell expansion and cell permeability (Roggatz et al, 1999), photosynthesis, leaf production, and growth, plants (Chapin, 1980;Clarkson and Hanson, 1980;Evans, 1983;Radin and Boyer, 1982;Sinclair and Horie, 1989;Reddy et al, 1997a;Gerik et al, 1998;Zhao et al, 2003Zhao et al, , 2005a and yield (Zhao et al, 2007). Some reports suggest that N deficiency affects more strongly the leaf development than photosynthesis (Watson, 1952;Wong, 1979;Radin and Boyer, 1982;Reddy et al, 1997a).…”

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confidence: 99%

“…Some reports suggest that N deficiency affects more strongly the leaf development than photosynthesis (Watson, 1952;Wong, 1979;Radin and Boyer, 1982;Reddy et al, 1997a). Field and Mooney (1986) and Gerik et al (1998) in their reviews described many of the responses of plants to N, P and K deficiency. They described the effects of low N, P and K nutrition on plants as causing lower photosynthetic rates and slower leaf expansion.…”

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Effects of Nitrogen, Phosphorus and Potassium Levels on Kenaf (Hibiscus cannabinus L.) Growth and Photosynthesis under Nutrient Solution

Hossain¹,

Musa²,

Talib³

et al. 2010

JAS

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To date, little is known about the effect of levels of nitrogen, phosphorus and potassium on kenaf grown in nutrient solution culture. The objective of the present study was to examine the effects of different nitrogen, phosphorus and potassium levels on kenaf growth such as diameter, plant height, leaf number, root dry weight, stem dry weight and leaf dry weight and physiology like chlorophyll content, photosynthesis and stomatal conductance. Treatment consisted of 5 different levels of nitrogen viz. 0, 50, 100, 200 and 400 mg/L and 5 different levels of phosphorus and potassium viz. 0, 25, 50, 100 and 200 mg/L replicated thrice in a completely randomized design in a shade house. Growth (diameter, plant height and leaf number), chlorophyll content and photosynthesis were measured once weekly and plant components biomass was measured, 28 DAT. Different levels of nitrogen, phosphorus and potassium had significant effects on all the parameters studied. The highest values for diameter, plant height, leaf number, root dry weight, stem dry weight, leaf dry weight, photosynthesis and stomatal conductance were obtained from 200N, 100P and 100K whereas values decreased with further increase in levels of nutrient concentration. All the growth rates, chlorophyll content and photosynthesis declined with lower level of nitrogen, phosphorus and potassium. Among the plant components, leaf dry weight had the greatest decrease while root/shoot ratio increased under N deficiency. The results of this study provide new knowledge to produce kenaf with better nutrient management in the field.

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Section: Resultsmentioning

confidence: 99%

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confidence: 99%

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Effects of Nitrogen, Phosphorus and Potassium Levels on Kenaf (Hibiscus cannabinus L.) Growth and Photosynthesis under Nutrient Solution

Hossain¹,

Musa²,

Talib³

et al. 2010

JAS

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“…In the U.S. cotton belt, N applications are variable ranging from 80 to 246 kg N ha -1 , but in cotton regions similar to Andalusia like California the N application reaches 211 kg ha -1 (Gerik et al, 1998). For the survival of cotton production in Spain under the present Common Agricultural Policy regulations (Bilbao-Arrese et al, 2005), production costs have been reduced in order to provide economic return to farmers.…”

Section: Introductionmentioning

confidence: 99%

Nitrate and potassium concentrations in cotton petiole extracts as influenced by nitrogen fertilization, sampling date and cultivar

López

Castro

Gutiérrez

et al. 2010

Span. j. agric. res.

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The effect of nitrogen fertilization levels on seed cotton yield responses of cultivars from Andalusia was studied during two consecutive years. To obtain preliminary information for improving nutrient management, the analysis of nitrate and potassium (K) was performed in petiole extracts at critical times (flowering, boll-setting, boll growth) during the growth cycle. Signif icant differences among cotton cultivars were found for petiole nitrate and K concentrations. The highest petiole nitrate and K concentrations were found in cultivar 'Crema 111' with 4,140 and 14,180 mg kg -1 respectively. These concentrations were affected by N treatment and sampling date. The relationships among petiole nutrient concentrations and seed cotton yield depended on sampling date, cultivar and year. The highest association between petiole nitrate and yield was found early in the season in 2003 (r = 0.918 and r = 0.965 for 'Crema 111' and 'Sor Angela' respectively). The analysis of petiole extracts for controlling plant nutritional status and optimize seed cotton yield requires a systematic assessment as critical values in nutrient concentration for seed cotton yield may differ depending on cultivar, soil type, sampling date and crop management. The technique of petiole analysis used in this paper might be useful for detecting genotypes with improved nutrient uptake or use efficiency.Additional key words: Gossypium hirsutum, mineral nutrition, yield. ResumenEfecto de la fertilización nitrogenada, fecha de muestreo y cultivar en la concentración peciolar de nitrato y potasio en el algodón Se ha estudiado el efecto de la respuesta de distintos niveles de fertilización nitrogenada sobre el rendimiento de algodón bruto en cultivares andaluces durante dos años consecutivos. Con el objeto de obtener información para mejorar el manejo nutricional del cultivo, se realizaron análisis de nitrato y potasio (K) en peciolos en períodos críti-cos del cultivo (floración, fructificación y desarrollo de cápsulas). Los cultivares presentaron diferencias en la concentración de nitrato y K en peciolo, alcanzándose las mayores concentraciones en 'Crema 111' (4.140 and 14.180 mg kg -1 para nitrato y K respectivamente). Los tratamientos fertilizantes y la fecha de muestreo afectaron a las concentraciones de nitrato y K en los peciolos. Las relaciones entre las concentraciones de nutrientes en el peciolo y el rendimiento de algodón bruto dependieron de la fecha de muestreo, del cultivar y del año. La relación más estrecha entre producción y concentración de nitrato se observó en 2003 y el muestreo temprano (r = 0.918 y r = 0.965 para 'Crema 111' y 'Sor Angela' respectivamente). El uso del análisis del peciolo para controlar el estado nutricional de la planta y optimizar los rendimientos requiere una evaluación sistemática para estimar valores críticos de concentración de nutrientes, ya que estos difieren dependiendo del cultivar, tipo de suelo, fecha de toma de muestra y prácticas culturales. La técnica del análisis peciolar parece útil también...

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“…Cotton leaves contain 60-85% of the total nitrogen before flowering; after flowering, the nitrogen content declines because it is translocated from the leaves to the developing bolls. A greater amount of nitrogen is required in the later growth stages when nitrogen supplies typically diminish and there is less root activity (Gerik et al, 1998).…”

Section: Introductionmentioning

confidence: 99%

Effect of split and foliar application of nitrogen on leaf nitrogen concentration, SPAD index and photosynthesis in Bt. Cotton (Gossypium hirsutum L.)

2017

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A field experiment was carried out at Rahuri (Maharashtra) India in consecutive years of 2011 to 2012 to study the response of split and foliar application of nitrogen on leaf nitrogen concentration, SPAD index and photosynthesis in Bt cotton (Gossypium hirsutum L). Ten treatments comprising nitrogen-management practices (application of recommended dose of nitrogen in 3, 4, 5, 6 splits; foliar application of 20 g KNO 3 litre -1 water, 20 g urea litre -1 water, combination of split application of nitrogen and foliar spray of 20 g KNO 3 litre -1 water, 20 g urea litre -1 water and control) were tested on inceptisol. Results indicated that application of nitrogen in six splits (20% at sowing as basal and remaining in 5 equal splits at 30, 45, 60, 75 and 90 DAS) registered significantly higher leaf nitrogen content, SPAD index and rate of photosynthesis except 60 DAS where 4 nitrogen split showed higher leaf nitrogen content and SPAD index. Similarly the same treatment registered significantly higher plant height, dry matter accumulation, number of bolls plant -1 and lint yield.

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Managing Cotton Nitrogen Supply

Cited by 95 publications

References 55 publications

Effects of Nitrogen, Phosphorus and Potassium Levels on Kenaf (Hibiscus cannabinus L.) Growth and Photosynthesis under Nutrient Solution

Effects of Nitrogen, Phosphorus and Potassium Levels on Kenaf (Hibiscus cannabinus L.) Growth and Photosynthesis under Nutrient Solution

Nitrate and potassium concentrations in cotton petiole extracts as influenced by nitrogen fertilization, sampling date and cultivar

Effect of split and foliar application of nitrogen on leaf nitrogen concentration, SPAD index and photosynthesis in Bt. Cotton (Gossypium hirsutum L.)

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